Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	May 31, 2013	Aug. 31, 2012
Condensed Consolidated Balance Sheets
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 1,364	$ 577
Accounts receivable from related parties, allowance for doubtful accounts (in dollars)	$ 1,388	$ 1,405
Common stock, par value (in dollars per share)	$ 0.0000056	$ 0.0000056
Common stock, shares authorized	32,143	32,143
Common stock, shares issued	27,752	27,470
Common stock, shares outstanding	27,752	27,470